### 18.8 Using secondary windows in HTML Help

When you jump to a secondary window in HTML Help, you get only one instance of that window. Whenever you target the secondary window, the window itself stays in place, and only the content is replaced.

In this section:

§18.8.1 Defining secondary windows for HTML Help

§18.8.2 Jumping from a topic to a secondary window

§18.8.3 Jumping from contents or index to a secondary window

See also:

§16.7 Jumping to secondary windows in Help systems

Previous Topic: 18.7.6 Creating buttons for other types of related-topic links

Next Topic: 18.8.1 Defining secondary windows for HTML Help

Parent Topic: 18. Generating Microsoft HTML Help

Sibling Topics:

18.1 Understanding how DITA2Go produces HTML Help

18.2 Understanding why Unicode is not the answer

18.3 Setting up an HTML Help project

18.4 Customizing HTML Help display features

18.5 Creating pop-ups for HTML Help

18.6 Creating links and hypertext jumps in HTML Help

18.7 Creating related-topic links for HTML Help

18.9 Generating contents and index for HTML Help

18.10 Providing full-text search (FTS) for HTML Help

18.11 Setting up CSH for HTML Help

18.12 Generating HTML Help in non-Western languages

18.13 Compiling and testing HTML Help

18.14 Mapping and merging CHM files